NPPES file of Aug 9, 2026

Susan Amaru Demsey, M.S, C.G.C

Genetic Counselor (M.S.) · Downey, CA

Susan Amaru Demsey, M.S, C.G.C is a genetic counselor (m.s.) with a practice address in Downey, California, and NPI 1457413122, issued on Dec 15, 2006. Check the license (California GC000121, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1457413122
Name
Susan Amaru Demsey
Credential
M.S, C.G.C
Primary taxonomy
Genetic Counselor (M.S.) 170300000X
License number
GC000121 CA
Self-reported in NPPES; status is on the state search
Practice location
9449 Imperial Hwy, Downey, CA 90242
Phone
(562) 657-3030
Enumerated
Dec 15, 2006
Record last updated
Feb 28, 2012 (not updated in 14 years: call before relying on the address or phone)
Fax
(562) 657-4408
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 9449 Imperial Hwy

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Gary AfferinoPharmacist1437696267
  2. Stephanie Angarita, M.D.Surgical Oncology Physician1003259219
  3. Melanie Aoki, PH.D.Cognitive & Behavioral Psychologist1588865489
  4. Glenn Arnoco, FNPFamily Medicine Physician1629633391
  5. Shant Ashdjian, M.D.Obstetrics & Gynecology Physician1841502457
  6. Sana Ashraf, MDPediatric Cardiology Physician1316177215

Verify Susan Amaru Demsey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license GC000121
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

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Genetic Counselor (M.S.) providers in California

There are 942 genetic counselor (m.s.) records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other genetic counselor (m.s.) records in California

  1. Hannah AaronLos Angeles, CA1346030293
  2. Liane Abrams, M.S.,C.G.C.Lafayette, CA1811936644
  3. Christa Adusei, MS, CGCSouth San Francisco, CA1699112375
  4. Faria Ahmed, MSSacramento, CA1235753658
  5. Karen Ahn, M.S.Oakland, CA1396723532
  6. Cory Airheart, M.S., C.G.C.Fresno, CA1912971110
  7. Aida AkopyanBurbank, CA1801448402
  8. Rachel Alfred IrudayarajLos Angeles, CA1174332845
  9. Shari Alpern, M.S., C.G.C.Long Beach, CA1427070994
  10. Monica Alvarado, MS, CGCPasadena, CA1538221296

Common questions

What is Susan Amaru Demsey, M.S, C.G.C's NPI number?

Susan Amaru Demsey, M.S, C.G.C's National Provider Identifier (NPI) is 1457413122, issued on Dec 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Susan Amaru Demsey, M.S, C.G.C located?

The NPPES record lists a practice address at 9449 Imperial Hwy, Downey, CA, 90242. Phone: (562) 657-3030. Providers update this record themselves, so call before visiting.

How can I verify Susan Amaru Demsey, M.S, C.G.C's license?

NPPES lists California license number GC000121, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.